Added the property channelRpcTimeout in RabbitProperties.java file to be configurable in RabbitAutoConfiguration

Thank you for the OSD opportunity to learn! I hope you all made a lot of progress on this project today.

Comment From: pivotal-issuemaster

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Comment From: pivotal-issuemaster

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Comment From: snicoll

@jkhoward nicely done and thank you for making your first contribution to Spring Boot. The default for this property is 10 minutes so I've polished that in c4e1b4f.